A photo posted by strong_nat (@strong_nat) on Dec 12, 2014 at 4:26pm PST

The party took place at global travel company Flight Centre's Brisbane headquarters where the Slip'n'Slide has been an annual tradition for six years to raise money for the company's foundation charities.

The event has remained largely under wraps until the image of this year's festivities went viral this weekend.

Office workers dressed in corporate clothes watched as each of their colleagues, one by one, slid head first down the slide. The aim of the game is to try to get to the very end of the structure using only the force of your weight.

"It's awesome to work for a company that doesnt take itself too seriously," an employee, who declined to be identified, told Mashable. "We are well known for our love of a good party all over the world, and the annual Christmas Slip'n'Slide is just one example of this."

Watch a brilliantly funny video of a worker taking on last year's Slip'n'Slide below.